US1437948A - Wood disk wheel - Google Patents

Description

E. C. SENDELBACH- WOOD DISK WHEEL.

APPLICATION FILED FEB. 15. I922.

1,437,948, Patented Dec. 5, 1922.

3 SHEETSSHET I.

- WITNESS E. C. SENDELBACH WOOD DISK WHEEL.

APPLICATION FILED FEB-15.1922.

Patented Dec. 5, 1922.

3 SHEETS-SHEET 2.

Wm ATTORNEYS WITNESS E. c. SENDELBACH.

WOOD DISK WHEEL.

APPLICATION FILED FEB. I5, 1922.

1,437,948. Patented Dec. 5, 1922.

3 SHEETS SHEET 3.

ENTOR 14 C WITNESS j z A TTORNE YS Patented Dec. 5, 1922.

nnwanno. sinaneLB GH, rfmme mmm;sammvimr f f Application med ljebruary' 15, 1922, "seria at. 536372.

To all whom itmay cancer rt:

Be it knownthatI EDWARD .C. SENDEL- EACH, a citizen of the "UnitedStates', resid ing at Philadelphia, in the county of Phil-- commodable to wheel bands of different sizes and easily manufactured. i I I 1 More specifically stated certain ,ob-jects'of the invention. may be said to reside in the provision of what I have termeda double disk wheel, that is a wheel which ismade up.

of two disks or sections as will furtherap-l pear; the provision of a wheel which pro sents a flat face. to the brake dru'm'as'well as a flatface to the hub plate butone which is concaved or dished on the xside which is turned away from the" vehicle; the provisionof a wheel in which the strength of laminated wood is secured but in which none of the glued joints of such laminations are exposed to the weather norm/which are. any dirt or water collecting pockets; the provision of a wheel in which the load-is carried perpendicularly through the; center of the hub and of the wheel band or substantially so; and the provision of-awh'eel in which the dished front or outer face" of the wheel is used to brace the structure against side stress. I also contemplatefithe. provision of a wood disk wheel to which can i be readily appliedtheusual standard wheel band as well as any desired: type of} hub flange- A further object ofithe invention is the-provision of a wood disk-wheelfjin which ready access can behad to the valve stem for purposes of tireinflation-prideflation. I

I also propose tobuild this double disk,

wheel in such a manner as-flto utilize the screws or other members which hold the two disks together as asortof stop, against which thexrim clamp; plates-and washers associated with the boltsforholding the rim in place can take;

It is, also. my ntention to provide disk; wheel havinglaflatliface againstrwhich 2 but illustrating;

\ braked drum I secured and i i outer dished face which canbe entirely made of; .lamlnated woodwhile at the same time being capable of accommodating itself a'szwbefore stated to differentirsizesz df wheel abands;

I Theseftogetherrwi'th: such other objects as may appearhereinafteror are incident to my invention I obtain'bly' ineanso'f a con struction which is illustrated inxpreferred form inthe accompanying drawings, where I .2 A I W Fig, is-1 a face" wviewxof'; an automobile wheel embodying my. invention "but I with a portion of the rini and some of the rim 1 clamps omitted;- FigtifZ is" a section on ,the line 2 2 OfwF'lg.-1; Fl-g. sectiononthe line 3- -3-o f.Fig. 1 but on anenlarged scale; Fig'a is a section -o'n the line 1- offi Fig.1 1,;also {on anenlargedscale; Fig.

5 isa fragmentary elevation: similar to that of Fig; 1 illustratinga modification; Rig." 6 is 5a section 5 on the line 6o 6c of; Fig; 5

and Fig.- Zis: asect-ioni similar to; that of Fig.

somewhat different form l.-

of'construction. Referring to, the draw ngsfl ,illjbe noted thatamyi improved; woodmlisk wheel come prises a substantially fiat Fbaek Inenrberor section 'T'anda dished' front' member or seca;

tionr8s which are securedtogether in, any

desired or suitable manner but preferably by screws '9: as illustrated. ,Thescrews 9 are located near the; periphery of the (wheel and in addition :to these, I employ screws 10 nearer the -center of the;.iwheehlunderathe hub fiangellr 1);; j, H Because. of-z'its very muehigreater strength I make the-haclcmember or section 0t lam- I inated-wood which, in the drawings I have illustrated as being composed of'seven lay: erse. 'The number of layers, however; can

be v lli edas desiredandlgw-ish tocall at tention to the factthatcby this means I can make my; :wh eel readily .iaccommodable" to tice there-are generally three} standard ,sizes of wheel. bands, g name ly, 2". In order to make my wheelsufliciently. wide v"wheel bands of difierent sizeswln pracatthe periphery to take theflargersized bands, I'simply ad'di to the mllfibe of ay ers of laminations ,to the back member leavmat s Mane Iif h O r he e parts composing thebalance substantially have been familiar, in order to dish the wheel the laminations' are built up to a cer tain thickness and then the entire mass or body of wood is pressed to the desired shape.

This process necessarily limited the thickness to which the wheel could be built.- It will readily be seen, therefore, that with my improved method it will be possible to build up a wheel to any desired thickness simply by adding laminations tothe back member asdescribed. 1 a

In Figs. 1 to 6 inclusive I have illustrated the front member or section also as composed of laminated wood which laminations are pressed approximately to .the shape 'illus-' trated andformed with a central flat portion 12 which abutsi-against the inner flat face of the back member and a peripheral flat portion 13 againstwhich the rim clamp plates 14 are adapted tobe screwed;

Between the flat periphery 13 of the front member and the Hat'periphery of the back member, 'I provide a separator 15 and it will be observed that the securingor connecting screws 9 pass through this member. f

In order to brace-the wheel against side stresses, I apply to the outer face of the flat portion 12 what I have termed a pad extension member16which I prefer to make of such a thickness as will make the wheel in the center substantially as thick as it is at the periphery. That is to saythe sum of thefthicknesses of the back member 7 the front member 8 and'the pad extension member 16 is substantially equal to the sum of the thicknesses of the back member 7 the separator member 15 and the flatportion 13 of the front membe'r8.

Between the pad extension member 16 and the central portionl2 of the outer member 8, I prefer to employ some torque resisting connection" such for example as the radially disposedstrips of wood 17 which constitute in effect what might be termed keys inasmuch asthey fit into suitablechannels or groovesin the members which they join. In Figures 5 "and 6 I have illustrated a substitute .method for resisting torque in which the two members in question are secured together by a, plurality of circumferentially disposed dowel pins 18.

In a structure such as is illustrated in Figures llto 6 inclusive I prefer to insert sufficient dimension to a block19 between the front and backmembers at the. point where the valve stem of the tire indicated in Figure'2 by the dotted line 20,.is inserted. .This block is drilled out so as to have an, oval opening 21 of V M I permitof'the use of a; encil pressuregage; "j

.he' manner in which the wheelis built up is briefly as follows: First the desired number of laminations constituting the back member are built up after which the separator member 15 is put in place followed by the block 19 and then by the front memher, 8. Against the central portion of the front member comes the pad extension inember,'. all the parts being suitably glued step by step. The securing screws 9 and 10 are then put in place and a hole drilled through all of the members at the point where the valve stem is inserted which hole constitutes in effect a continuationof the hole 21- already referred'to in the block. 19.- The rear of the hole is covered over in any desired manner by means of a plate 22 and the front by means of another plate 23'provided with suitable spring clips "24 in'order that it may be readily removed and replaced when changing. a tire; The spring clips may snap over either the edge of the wood as shown at the upper portion of Figure 2 orover a-wire 25 embedded in thewood as shown at the lower portion of the hole in Figure 2.

Referring to that the parts substantially:correspond with the exception that the front member 8 is not made of laminated wood but is simply built vup of a straight piece or a series of straight pieces as may be necessary in forming the wheel. It is also provided with an outer peripheral flat part 13 against which the plates 1 1 are adapted to abut. This type of wheel is built up in much the same manner as the first type described except; of course, as just stated the outer member 8 is not laminated and instead of pressing it into the dish shape, I prefer to core it out on a lathe.

The wheel band 26 is shrunk on in the usual manner. 1

It will be noted that the construction pro vides a smooth flat face against which the. hub flange plate 11 is adapted'to abut as well as a smooth interior flat face against which the brake drum 27 is adapted to abut; This is of great advantage particularly with respect to the brake drum inasmuch as in former disk wheels of this character with which I am familiar it has been necessary In Figure 31' have illustrated in addition to my improvements the usual type of rim 29 rim Wedge 30, rim clamp and nut and bolt securing means 32 and I also wish to point out that thescrews 9 and the rim plates 14: as well as the washers if 3 i'under theheads of the bolts 33 are so positioned with respect to one anotheras tobring the rim plates over the'heads of the screws and the Washers over the ends that I have provided a wood disk wheel for an automobile in which I have secured an the advantages incident to laminations while at the same time providing a dished front or outer face. The wheel hasa flat back or inner surface against which the brake drum abuts, there are no dirt crevices and the load is carried perpendicularly through the center of the hub and the wheel band. No glued joints are exposed to the weather and the wheel. is resilient, light, strong and easy to wash. It is easy to manufacture and presents a pleasing appearance both of which features are of great importance in connection with manufacture and sale.

What I claim is: I

1. A wood disk wheel comprising in combination, an inner section having substantially fiat faces and an outer section inwardly dished to provide a substantially flat central portion abutting against the adjacent flatface of the inner section.

2. A wood disk wheel comprising in combination, a laminated inner section having a substantially flat inner face and an outer section inwardly dished and having a fiat inner face adapted to abut against the flat face of the inner section.

3. A wood disk wheel comprising in combination, a laminated inner section having a substantially fiat outer face, a laminated outer section having a concave outer face,

spacer means between the peripheries of the sections, and securing means holding all of said parts together.

4:. A wood disk wheel comprising in com- 5. A wood disk wheel comprising in combination, a laminated inner section having a substantially fiat inner face, a laminated outer section inwardly dished to provide a fiat faced central portion adapted to abut against the flat face of the inner section, separator means between the peripheries of the sections, a substantially flat peripheral portion on the outer section adapted to abut against the separator means, and fastening members extending through said peripheral portions and said separator means.

6. In awood disk wheel for pneumatic tires ofthe character herein described,the combination'of a hollowed block opposite the valve steminto which the stem projects, openings in the disks opposite the block, and

removable cap members closing said openin s.

1. A wood disk wheel comprising in combination, an inner straight section, an outer inwardly dished section abutting at the central portion thereof against the inner section, and a pad extension member placed against the lowest portion of the dished surface to brace the outer section.

8. A wood disk wheel comprising in combination, an inner straight section, an outer inwardly dished section abutting at the central portion thereof against the inner section, a pad extension member placed against the lowest portion of the dished surface, and a. key between the pad extension member and the outer section.

' 9. A wood disk wheel comprising in combination, a laminated inner straight section, an outer inwardly dished laminated section abutting at the central portion thereof against the inner straight section, a pad ex tension member placed against the lowest portion of the dished surface, and a key between the pad extension member and the outer section.

10. A wood disk wheel comprising in combination, a laminated inner straight section, an outer inwardly dished laminated section abutting at the central portion thereof against the inner straight section, a pad extension member placed'against the lowest portion of the dished surface, and means locking the pad extension member and the outer section together as against strains imposed by torque.

11. In a disk wheel, the combination with ahub, of a substantially flat laminated disk secured thereto, a curved laminated disk secured to the flat disk at the hub, and a ring separating said disks at their peripheries.

12. A disk wheel comprising a substantially fiat laminated disk constituting the inner face, and a curved laminated disk secured to the fiat disk at the inner portion and spaced apart therefrom at the periphery and constituting the outer face of the wheel.

In testimony whereof, I have hereunto signed my name.

p EDWARD C. SEN DELBACH.

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